Good examples of ideas and execution is plentyfull in both software and art, just because you get both of them right doesn't mean you will succeed.
Historically, this is extremely wrong. Renaissance artists were the technicians of course. That’s what they were known for.
This is the rot of an industry built on extracting funds from overly wealthy patrons with no limit to the amount of dishonesty.
That's only partially true.
While Renaissance masters usually had the skill to execute a fully finished work, and probably did so during their own apprenticeship, by the time they became masters they often had workshops of dozens or even hundreds of assistants who did almost all of the work for them. After the work was almost complete, the master might come in and put on some finishing touches.
There's lots of art out there these days that's misattributed to the master when it was actually done by one of his assistants in the workshop, whose training was usually centered around creating art that looked just like the master's.
If you think Duchamp was pulling a fast one you'll probably think Emin to be some sort of queen of hustlers.
Like many businesses, the art business is primarily driven by marketing. The act of painting is largely orthogonal to the act of persuading an oligarch that your painting is valuable.
Which is more an indictment of the Capitalist system than anything else.
It is striking how differently the art technicians in this article think. They see the idea as having all the intrinsic value. More cynically I wonder if it is really the marketing value of a big name rather than the quality of ideas that count. A great idea by an art student is far less valuable than a great idea from a famous painter or sculptor.